View larger version (298K)

Figure 14b.  Type II congenital cystic adenomatoid malformation. (a) Anteroposterior chest radiograph of a newborn shows a heterogeneous bubbly mass in the left lung displacing mediastinal structures to the right. (b) Coronal T1-weighted image in the same patient shows cysts (arrows) smaller than 2 cm in diameter. (c) In another newborn patient, chest CT shows a complex cystic mass in the right upper lobe, smaller than the type I mass seen in Figure 13b.